🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.4

Radius: 9.9

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.53 AU - 0.59 AU

Year: 289 Days

Day: 12.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,629,730 km

• M1: 123,269 km (0.112 R)
• M2: 491,279 km (0.101 R)
• M3: 1,033,721 km (0.069 R)
• M4: 1,549,086 km (0.079 R)
• M5: 1,863,690 km (0.072 R)
• M6: 2,332,081 km (0.095 R)
• M7: 2,831,439 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.5

Radius: 8.5

Gravity: 9.27 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.46 AU - 0.72 AU

Year: 313 Days

Day: 14.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,629,730 km

• M1: 105,915 km (0.087 R)
• M2: 496,366 km (0.099 R)
• M3: 828,623 km (0.064 R)
• M4: 1,133,204 km (0.091 R)
• M5: 1,427,014 km (0.032 R)
• M6: 2,140,446 km (0.098 R)
• M7: 2,832,336 km (0.063 R)
• M8: 3,219,945 km (0.095 R)
• M9: 3,783,480 km (0.108 R)
• M10: 4,101,674 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626

Radius: 9.2

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.53 AU - 0.83 AU

Year: 387 Days

Day: 6.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,629,730 km

• M1: 114,891 km (0.078 R)
• M2: 409,300 km (0.12 R)
• M3: 855,251 km (0.055 R)
• M4: 1,435,392 km (0.08 R)
• M5: 1,847,683 km (0.036 R)
• M6: 2,157,052 km (0.094 R)
• M7: 2,731,208 km (0.053 R)
• M8: 3,312,845 km (0.068 R)
• M9: 3,687,737 km (0.067 R)
• M10: 4,065,023 km (0.072 R)
• M11: 4,926,707 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.8

Radius: 14.7

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.69 AU - 2.31 AU

Year: 1952 Days

Day: 10.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,629,730 km

• M1: 182,809 km (0.059 R)
• M2: 712,684 km (0.111 R)
• M3: 1,550,582 km (0.096 R)
• M4: 2,721,484 km (0.085 R)
• M5: 3,413,375 km (0.117 R)
• M6: 3,875,931 km (0.09 R)
• M7: 4,628,409 km (0.097 R)
• M8: 5,220,816 km (0.075 R)
• M9: 5,740,818 km (0.077 R)
• M10: 10,708,066 km (0.072 R)
• M11: 11,356,124 km (0.063 R)
• M12: 13,900,036 km (0.091 R)
• M13: 14,625,735 km (0.099 R)
• M14: 15,281,422 km (0.095 R)
• M15: 17,627,416 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.9

Radius: 9.3

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.87 AU - 3.03 AU

Year: 2647 Days

Day: 7.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 170.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 53,629,730 km

• M1: 115,789 km (0.045 R)
• M2: 775,515 km (0.11 R)
• M3: 1,572,872 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.8

Radius: 10

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.15 AU - 2.95 AU

Year: 2811 Days

Day: 8.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,629,730 km

• M1: 124,615 km (0.108 R)
• M2: 512,223 km (0.113 R)
• M3: 892,501 km (0.079 R)
• M4: 1,363,585 km (0.1 R)
• M5: 2,700,690 km (0.078 R)
• M6: 3,102,361 km (0.041 R)
• M7: 4,240,800 km (0.085 R)
• M8: 4,977,869 km (0.107 R)
• M9: 5,690,853 km (0.043 R)
• M10: 7,038,879 km (0.046 R)
• M11: 8,104,913 km (0.119 R)
• M12: 9,312,617 km (0.093 R)
• M13: 10,758,929 km (0.086 R)
• M14: 12,259,695 km (0.082 R)
• M15: 13,749,690 km (0.082 R)
• M16: 14,841,904 km (0.12 R)
• M17: 16,044,521 km (0.105 R)
• M18: 17,142,121 km (0.099 R)
• M19: 17,709,396 km (0.096 R)
• M20: 18,347,730 km (0.109 R)
• M21: 20,355,034 km (0.078 R)
• M22: 21,771,876 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.9

Radius: 9.4

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 4.81 AU - 4.89 AU

Year: 7373 Days

Day: 6.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,629,730 km

• M1: 117,285 km (0.041 R)
• M2: 463,155 km (0.055 R)
• M3: 757,564 km (0.081 R)
• M4: 1,392,457 km (0.062 R)
• M5: 2,744,822 km (0.115 R)
• M6: 3,363,858 km (0.114 R)
• M7: 3,818,037 km (0.112 R)
• M8: 5,304,142 km (0.109 R)
• M9: 5,721,071 km (0.107 R)
• M10: 6,512,444 km (0.093 R)
• M11: 7,142,850 km (0.076 R)
• M12: 7,611,988 km (0.1 R)
• M13: 8,742,799 km (0.061 R)
• M14: 9,143,571 km (0.108 R)
• M15: 10,370,872 km (0.077 R)
• M16: 14,399,842 km (0.097 R)
• M17: 18,846,639 km (0.093 R)
• M18: 20,433,872 km (0.09 R)
• M19: 22,108,471 km (0.045 R)
• M20: 40,011,147 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.1

Radius: 7.4

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 6.25 AU - 7.11 AU

Year: 11917 Days

Day: 18.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,629,730 km

• M1: 92,152 km (0.11 R)
• M2: 347,217 km (0.074 R)
• M3: 718,818 km (0.086 R)
• M4: 1,098,647 km (0.116 R)
• M5: 2,116,062 km (0.079 R)
• M6: 2,498,135 km (0.085 R)
• M7: 2,749,010 km (0.045 R)
• M8: 3,425,941 km (0.112 R)
• M9: 3,926,645 km (0.103 R)
• M10: 4,445,002 km (0.115 R)
• M11: 5,512,682 km (0.058 R)
• M12: 5,904,030 km (0.042 R)
• M13: 6,390,073 km (0.117 R)
• M14: 8,890,452 km (0.075 R)
• M15: 10,679,194 km (0.116 R)
• M16: 14,481,373 km (0.114 R)
• M17: 16,793,558 km (0.114 R)
• M18: 17,089,612 km (0.042 R)
• M19: 18,386,775 km (0.114 R)
• M20: 19,830,395 km (0.057 R)
• M21: 21,695,581 km (0.108 R)
• M22: 23,860,412 km (0.051 R)
• M23: 26,264,449 km (0.065 R)
• M24: 28,825,266 km (0.095 R)
• M25: 31,324,149 km (0.114 R)
• M26: 31,772,942 km (0.076 R)
• M27: 37,372,839 km (0.033 R)
• M28: 40,206,373 km (0.065 R)
• M29: 50,017,450 km (0.078 R)
• M30: 51,404,222 km (0.107 R)
• M31: 51,872,014 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 485.4

Radius: 6.9

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.78 AU - 8.18 AU

Year: 12729 Days

Day: 15.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,629,730 km

• M1: 85,869 km (0.038 R)
• M2: 319,242 km (0.077 R)
• M3: 626,665 km (0.039 R)
• M4: 1,127,818 km (0.062 R)
• M5: 1,425,219 km (0.116 R)
• M6: 1,952,701 km (0.05 R)
• M7: 2,749,310 km (0.077 R)
• M8: 3,268,564 km (0.083 R)
• M9: 4,560,940 km (0.079 R)
• M10: 5,523,901 km (0.076 R)
• M11: 6,810,892 km (0.076 R)
• M12: 7,253,702 km (0.09 R)
• M13: 7,801,679 km (0.069 R)
• M14: 11,514,997 km (0.062 R)
• M15: 11,740,890 km (0.057 R)
• M16: 12,260,144 km (0.085 R)
• M17: 19,981,189 km (0.076 R)
• M18: 22,081,095 km (0.026 R)
• M19: 28,118,865 km (0.035 R)
• M20: 33,537,898 km (0.078 R)
• M21: 38,975,631 km (0.114 R)
• M22: 39,742,320 km (0.111 R)
• M23: 45,533,852 km (0.071 R)
• M24: 47,389,613 km (0.099 R)
• M25: 49,592,891 km (0.055 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.9

Radius: 8

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.44 AU - 8.62 AU

Year: 15707 Days

Day: 24.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,629,730 km

• M1: 100,380 km (0.052 R)
• M2: 396,285 km (0.104 R)
• M3: 896,390 km (0.107 R)
• M4: 1,237,174 km (0.115 R)
• M5: 1,937,143 km (0.098 R)
• M6: 2,597,019 km (0.094 R)
• M7: 3,551,154 km (0.111 R)
• M8: 4,880,481 km (0.034 R)
• M9: 5,481,715 km (0.083 R)
• M10: 6,206,367 km (0.094 R)
• M11: 6,952,711 km (0.053 R)
• M12: 8,481,900 km (0.059 R)
• M13: 9,754,380 km (0.066 R)
• M14: 19,258,482 km (0.093 R)
• M15: 25,698,221 km (0.091 R)
• M16: 29,077,787 km (0.106 R)
• M17: 41,241,440 km (0.111 R)
• M18: 43,018,214 km (0.077 R)
• M19: 49,106,399 km (0.108 R)
• M20: 50,481,652 km (0.098 R)
• M21: 51,101,137 km (0.106 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 17,514 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit